Carrier Global, the world's largest HVAC company by revenue, is divesting its fire and security businesses to sharpen its focus on heating, cooling, and refrigeration. The divestiture is part of a broader OEM portfolio rationalisation trend that Kroll's HVAC M&A analysis identified as a key feature of the 2025 to 2026 landscape: 'continued trimming of non-core assets by global OEMs.'
For an industry that is tracking acquisitions closely, the divestiture story is equally important. The companies that HVAC OEMs are selling tells you what they are not committed to — and what they are selling themselves tells you what other acquirers are buying. The fire and security divestiture is a strategic signal from the world's largest HVAC manufacturer about where it believes its competitive advantage actually lies.
Why Carrier Is Selling Fire and Security
Carrier built its fire and security portfolio through historical acquisitions — the division includes brands like Chubb fire protection, LenelS2 access control, and other security technology businesses that were assembled over the past two decades. These businesses have their own technology trajectories, customer bases, and competitive dynamics that are separate from HVAC and refrigeration.
The decision to divest reflects a fundamental strategic recalibration. Carrier's leadership under CEO Dave Gitlin has concluded that the capital, management attention, and R&D investment required to remain competitive in fire and security is better deployed in HVAC and refrigeration — where Carrier has the strongest competitive position, the largest market share, and the most significant technology advantages to defend and extend.
Carrier Global is divesting its fire and security businesses to concentrate capital and management focus on HVAC and refrigeration — part of a broader pattern of global OEM portfolio rationalisation that is simultaneously releasing non-core assets into the M&A market while strengthening the HVAC-focused strategies of the divesting companies.
The Strategic Logic: Focus Beats Diversification
For large industrial conglomerates, the case for diversification has weakened significantly over the past decade. Capital markets increasingly reward focused companies with clear competitive positions over diversified businesses that are 'good at many things' but dominant in none. When Carrier's fire and security businesses trade at lower multiples than its HVAC core, the financial incentive to divest is clear: sell the lower-multiple businesses, reinvest in the higher-multiple core, and allow the market to value the resulting focused company more highly.
This is the same logic driving Carrier's concentration on HVAC. The data centre cooling market alone is growing at 17 percent annually toward $45.8 billion by 2033. The Americas commercial HVAC market is headed toward $70 billion by 2030. The global HVAC equipment market is growing at 7.4 percent annually toward $333 billion. A focused Carrier — directing every dollar of capital expenditure, R&D investment, and management attention toward these opportunities — is a more compelling business than a diversified Carrier trying to compete simultaneously in fire protection and security technology.
What Happens to the Divested Businesses
When OEMs divest non-core businesses, those assets typically find new homes that value them more highly than the divesting company did — because the acquirer has a more direct strategic fit. Carrier's fire and security businesses are attractive to:
• Specialised fire and security platforms: Companies whose primary expertise is fire protection and security technology — and for which the Carrier brands represent attractive scale and market position additions
• PE firms building services platforms: The recurring service revenue model of fire inspection, suppression system maintenance, and security monitoring is attractive to the same PE investors building HVAC service platforms
• Building systems integrators: Companies that combine HVAC, fire, security, access control, and energy management under a unified building systems umbrella may find the Carrier fire and security assets strategically attractive
The divestiture will likely produce a transaction at a meaningful premium to Carrier's internal valuation of the business — because focused buyers with strategic fit pay more than conglomerate owners managing businesses outside their core.
Frequently Asked Questions
Why is Carrier selling its fire and security business?
Carrier is divesting fire and security to focus capital and management attention on HVAC and refrigeration — where it has the strongest competitive position and the most significant growth opportunities. The divestiture follows a broader OEM portfolio rationalisation trend where global companies are concentrating on their core businesses rather than maintaining conglomerate diversification.
What does Carrier's fire and security divestiture include?
Carrier's fire and security portfolio includes brands such as Chubb fire protection and LenelS2 access control, assembled through historical acquisitions. The businesses provide fire suppression, detection, access control, and security monitoring services separately from Carrier's core HVAC and refrigeration operations.
How does OEM divestiture affect the HVAC market?
OEM divestitures of non-core assets create M&A opportunities for focused buyers who value the divested businesses more highly than the selling OEM. They also signal the OEM's strategic concentration on core HVAC capabilities — typically resulting in increased R&D, capex, and management focus on the HVAC business that remains.
